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x402helper.xyz Preflight Endpoint
x402
x402helper.xyz Preflight Endpoint is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-31).
Returns payment requirements and preflight metadata for a target x402-protected resource before an AI agent commits payment.
Price / call$0.006
Success—
StatusUnknown
How this service works
X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.
Output
Returns a JSON object with success status and a result object containing payment requirements for the target x402 resource, including USDC price, accepted payment network(s), and billing verification metadata.
Example use cases
Preflight before agent API payment
“Before my agent pays for the x402 resource at https://someapi.xyz/protected-data, look up the payment requirements — I want to know the USDC amount and accepted network before committing.”
Validate payment network for x402 resource
“Check whether https://dataservice.io/premium-endpoint accepts payments on the Base network and what the price is in USDC before I proceed.”
Compare costs across x402 endpoints
“Can you look up the preflight payment details for https://x402helper.xyz/89e509/ofac-screen so I know what it costs before my agent calls it?”
Technical details
Endpoint
GEThttps://x402helper.xyz/89e509/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to inspect payment requirements for any x402-protected resource before committing USDC. It is the correct first step in an x402 payment flow — call preflight to discover price, network, and billing details, then proceed with the actual payment. Prefer this over guessing payment parameters or calling the protected resource directly without payment.
Side effects
- Missing required 'url' query parameter returns an error or empty result
- Invalid or unreachable target URL may return an error or null result
- Unsupported network specified returns a validation error
- Target resource not x402-protected returns unexpected or empty payment requirements
- Network timeout if target endpoint is slow or unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"success": true
}
}Tags
x402
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